Ribbon device of type-writing machines.



. E. B. HESS.

RIBBON DEVICE OF TYPE WRITING MACHINES.

APPLICATION FILED MAR.9| I914.

Patented May 11, 1915.

08 5f WITNESSES:

A TTURNEI EDWARD IB. HESS, OF NEW YORK,

N. Y., Assreno'n 'ro Rover. ryrnwmmacmrm.

INQ, OF NEW YORK, N. Y., A. CORPORATION NEW YORK.

RIBBON DEVICE OF TYPE-WRITING MACHINES.

Specification of Letters Patent.

' Patented my 11, teas.

Application filed March 9, 1914. Serial No. 823,314.

means that, when the housing is closed about the spool, prevents removal of the spool and supports any slack of the ribbon that may occur, preventing it from droppmg down and becoming tangled in any part of the ribbon devices. p

' The invention is more particularly applicable to front strike machines. 'lhe spool receiving spindle in such case pro ects vertically above the top plate or cover of the machine, and at a suitable distance therefrom two vertical posts may be provided to which the sections of the housing are attached or hinged; and the space between the posts affords a slot to direct the ribbon at a suitable angle in its traverse from the spool to the ordinary ribbon vibrator, and vice versa.

In the accompanying drawings: Figure 1 is a plan view; Fig. 2, a vertical section through a ribbon spool housing, showing a ribbon spool therein; Fig. 3, a section taken betweenthe two halves of a ribbon spool housing, showing an elevation of the interior of a hinged section thereof; and Fig. 4, a detail sectional view showing a snubbing spring latch for holding closed a hinged sec tion of the housing. 1

' The ordinary spindle 1 of a ribbon'spool extends vertically up through the top dust I guard or cover plate 2 in a manner Well understood, and forms part of any appropriate ribbon feeding mechanism. Erected on the i Cover plates 2, in suitable position with reference to the line of travel of the ribbon 3, are two vertical round posts 4, 5 that serve to form a guide slot through which the rib bon travels. These posts also, however,

serve as pintles upon which are hinged the two sections 6, 7 of the housing of the spool. Fig. 1 shows, at the right, one of the hinged housing sections 7 swung rearwardly.

. cover plate 2. Of course, factory to have one of'the sections 6 or 7 ing in two sections one Each section is formed at its base with an inwardly projecting fiat hook 8, that, when the section is closed passes under the head of a.

screw 9 extending above the cover plate to lock the section against vertical strain or displacement. The spool has, as usual, a central hub 10 and upper and lower flanges 11 between which and on the hub the ribbon is wound. On the inner faces of the housing sections are posts or blocks 12 upon which are securedstrips of metal 13 conforming in curvature to the housing section but of such less radius as that the strips pass, to a suitable extent, between the spoolfianges- 11. These strips therefore serve as a positive guard to prevent displacement of the ribbon spool, and also to prevent slack of .the ribbon falling down below the lowerspool flange. By throwing back the sec-- tions 6, 7 of the housing, the spool may readily be slipped into place. When the housing is closed the spool is positively locked against being vertically moved from its spindle. Each one of the housing sections may be held closed by a spring controlled snubbing latch 14 upwardlyurged by a spring 15 within a well 16 formed in the:

it may be satisof the housing fixed permanently in position, hinging only the other one. The are of the openin in the fixed housing would of course be 0 such dimensions as to permit ready insertion and removal of the spool.

It is preferred, however, that both housing sections be movable because the guard 13 on I each section may then be conveniently used.

I claim:

1. In a visible typewriting machine, a top plate thereof, two vertical posts extending up therefrom and suitably adjacent to form a slot for the ribbon and a ribbon spool housof which is hinged to turn back to permit insertion of a spool.

2. In a visible typewriting machine, a top plate thereof, two vertical posts extending up therefrom and suitably adjacent to form a slot for the ribbon and a ribbon spool housing in two sections one of which is hinged on one of said posts to turn back to permit insertion of a spool. 3. A ribbon spool spindle,

a flanged ribbon tion of the spool, and a progection on the i inner side of the housing which extends between the flanges of the spool when the housis is closed.

4. A ribbon spool spindle, a flanged ribbon spool between the flanges of which a ribbon may be wound, a housing formed of a plurality of parts and adapted to open laterally to permit insertion of a spool and means for preventing slack of the ribbon from falling down below the lower flange of the spool.

A ribbon spool housing comprising a hinged section adapted to swing outwardly and formed with a projection at its lower edge, and a fixed head under which said proj ection passes when the section is closed.

6. A ribbon spool housing composed of sections one of which is adapted to swing outwardly to permitinsertion of a spool and a guard on the inner face of the housing to support slack of a ribbon.

7. A ribbon spool housing aflixed to the frame of the machine and composed of sections one of which is adapted to swing outwardly to permit insertion of a spool.

8. A ribbon spool housing aifixed to the frame of the machine and having a portion adapted to swing from normal position for the insertion or withdrawal of a spool.

9. A ribbon spool housing composed of EDWARD B. HESS.

Witnesses:

LEWIS C. MYERS, A. J. SHERIDAN. 

